Business Analist

Arrangements: 100% work regime; in principle at least two working days per week on site at Atrias in Brussels, with the possibility of increased on-site presence when project or operational needs require it; occasional travel to other Atrias sites or third-party locations, including distribution system operators, may be required.

Atrias is looking for an experienced Senior Business Analyst to strengthen its team of energy-sector experts. The assignment focuses on business needs and market developments within the Belgian energy market. You will translate these needs into consistent and implementable processes, requirements, UMIG documentation and solution designs. You will ensure alignment between the business need and the concrete deliverables.

You will work closely with distribution system operators, market parties, business representatives, architects, development teams and test teams. You will facilitate workshops and guide stakeholders towards broadly supported decisions, including when interests conflict. You will prepare consensus, decision and validation documents as well as stakeholder, communication and change-management plans. The business analysis covers the full journey from the initial need through handover to implementation and testing.

The assignment requires at least five years of demonstrable experience as a business analyst and five years of experience in the Belgian energy market. At least two years of experience with the UMIG domain Structure is also required, together with experience in functional designs, test plans, test scenarios, workshops and BPM. The consultant must operate effectively in a multi-stakeholder environment and meet the specified language requirements. The assignment is expected to run from 3 December 2026 to 3 December 2027 at a 100% work regime, with at least two working days per week on site at Atrias in Brussels.

Top Reasons to Apply

Belgian energy transformation

Deepen UMIG expertise

End-to-end business analysis

Long-term consulting assignment

Responsibilities

• Translate business needs requirements
• Create update UMIG documentation
• Ensure consistency and traceability
• Facilitate workshops with market parties
• Identify interests guide stakeholders

Must Have

• Business analysis 5 years
• Belgian energy market 5 years
• UMIG domain Structure 2 years

Nice to Have

• UMIG messages information flows

Detailed Responsibilities and Skills

Additional Responsibilities

• Prepare stakeholder communication change plans
• Deliver validated implementation-ready documentation
• Support validation testing defect analysis acceptance
• Demonstrable experience as a business analyst: minimum 5 years, senior level.
• Demonstrable experience facilitating workshops.
• Demonstrable experience developing and optimising business processes (BPM).
• Demonstrable experience in the Belgian energy market: minimum 5 years, senior level.
• During a potential interview, the candidate must sufficiently demonstrate the organisational skills required to work in a multi-stakeholder environment.
• Good knowledge of the second national language at European CEFR level B2.
• English at European CEFR level C1.
• Dutch or French at European CEFR level C1.
• Demonstrable stakeholder management experience. (Should have)

Technical skills

• Demonstrable experience reading, analysing and correcting Functional Designs.
• Demonstrable experience developing test plans and test scenarios.
• Demonstrable experience with the UMIG domain Structure: minimum 2 years, medior level.
• Demonstrable experience with market messages and information flows within the UMIG domain Structure. (Should have)
• Demonstrable experience writing and executing SQL queries. (Should have)

Tools

• SQL for writing and executing queries. (Should have)